com.net2plan.utils

Class ImageUtils

java.lang.Object

com.net2plan.utils.ImageUtils

public class ImageUtils
extends Object

Auxiliary functions to work with images.

Author:

Pablo Pavon-Marino, Jose-Luis Izquierdo-Zaragoza

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ImageUtils.ImageType Image type

Field Summary

Fields

Modifier and Type	Field and Description
static Color	TRANSPARENT

Constructor Summary

Constructors

Constructor and Description
ImageUtils()

Method Summary

Modifier and Type	Method and Description
static BufferedImage	addBorder(BufferedImage source, int borderSizePixels, Color borderColor) Creates a new image that adds a border of the given thickness and color to the image (so the image size grows)
static BufferedImage	createCircle(int iconHeight, Color fillColor) Creates an image of a filled circle of the given color, the rest is transparent
static BufferedImage	createImageFromShape(Shape s) Creates an image from the given shape
static BufferedImage	imageToBufferedImage(Image image) Converts an Image to a BufferedImage.
static BufferedImage	readImageFromFile(File file) Reads an image from a file.
static BufferedImage	readImageFromURL(URL url) Reads an image from an URL.
static BufferedImage	resize(BufferedImage image, int width, int height) Resizes an image.
static BufferedImage	takeSnapshot(JComponent component) Takes an snapshot of the current state of a component.
static BufferedImage	trim(BufferedImage img) Removes the white borders of a BufferedImage.
static void	writeImageToFile(File file, BufferedImage bufferedImage, ImageUtils.ImageType imageType) Writes an image to a file.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

TRANSPARENT

public static Color TRANSPARENT

Constructor Detail

ImageUtils

public ImageUtils()

Method Detail

addBorder

public static BufferedImage addBorder(BufferedImage source,
                                      int borderSizePixels,
                                      Color borderColor)

Creates a new image that adds a border of the given thickness and color to the image (so the image size grows)

Parameters:

source - the source image

borderSizePixels - the thickness in pixels

borderColor - the border color

Returns:

the new image

createCircle

public static BufferedImage createCircle(int iconHeight,
                                         Color fillColor)

Creates an image of a filled circle of the given color, the rest is transparent

Parameters:

iconHeight - the height and width of the created image, and the diameter of the circle

fillColor - the color to fill the circle

Returns:

the image

createImageFromShape

public static BufferedImage createImageFromShape(Shape s)

Creates an image from the given shape

Parameters:

s - the shape

Returns:

the image

imageToBufferedImage

public static BufferedImage imageToBufferedImage(Image image)

Converts an Image to a BufferedImage.

Parameters:

image - Image

Returns:

A BufferedImage

readImageFromFile

public static BufferedImage readImageFromFile(File file)

Reads an image from a file.

Parameters:

file - File

Returns:

A BufferedImage

readImageFromURL

public static BufferedImage readImageFromURL(URL url)

Reads an image from an URL.

Parameters:

url - URL

Returns:

A BufferedImage

resize

public static BufferedImage resize(BufferedImage image,
                                   int width,
                                   int height)

Resizes an image.

Parameters:

image - Source image to scale

width - Desired width

height - Desired height

Returns:

Resized image

takeSnapshot

public static BufferedImage takeSnapshot(JComponent component)

Takes an snapshot of the current state of a component.

Parameters:

component - Source component

Returns:

BufferedImage

trim

public static BufferedImage trim(BufferedImage img)

Removes the white borders of a BufferedImage.

Parameters:

img - Input image

Returns:

The input image without white borders

writeImageToFile

public static void writeImageToFile(File file,
                                    BufferedImage bufferedImage,
                                    ImageUtils.ImageType imageType)

Writes an image to a file.

Parameters:

file - Output file

bufferedImage - Image to save

imageType - Image type (bmp, jpg, png)